Homes that earn the ENERGY STAR must meet guidelines for energy efficiency set by the U.S. Environmental Protection Agency. ENERGY STAR qualified homes are at least 15 percent more energy efficient than homes built to the 2004 International Residential Code (IRC), and include additional energy-saving features that typically make them 20–30% more efficient than standard homes.

ENERGY STAR qualified homes can include a variety of energy-efficient features, such as effective insulation, high performance windows, tight construction and ducts, efficient heating and cooling equipment, and ENERGY STAR qualified lighting and appliances.

Through ENERGY STAR, builders and other home industry professionals can differentiate themselves in the market. New homes that qualify as ENERGY STAR provide greater comfort and durability for home buyers. In addition, ENERGY STAR qualified homes help protect the environment by reducing the greenhouse gas emissions associated with global warming.